/**
* Return user data for the provided token, compare with user_agent string.
*
* @param string $token The unique ID provided by remotehost.
* @param string $UA User Agent string.
* @return array $userdata Array of user info for remote host
*/
function user_authorise($token, $useragent)
{
global $CFG, $SITE, $DB;
$remoteclient = get_mnet_remote_client();
require_once $CFG->dirroot . '/mnet/xmlrpc/serverlib.php';
$mnet_session = $DB->get_record('mnet_session', array('token' => $token, 'useragent' => $useragent));
if (empty($mnet_session)) {
throw new mnet_server_exception(1, 'authfail_nosessionexists');
}
// check session confirm timeout
if ($mnet_session->confirm_timeout < time()) {
throw new mnet_server_exception(2, 'authfail_sessiontimedout');
}
// session okay, try getting the user
if (!($user = $DB->get_record('user', array('id' => $mnet_session->userid)))) {
throw new mnet_server_exception(3, 'authfail_usermismatch');
}
$userdata = mnet_strip_user((array) $user, mnet_fields_to_send($remoteclient));
// extra special ones
$userdata['auth'] = 'mnet';
$userdata['wwwroot'] = $this->mnet->wwwroot;
$userdata['session.gc_maxlifetime'] = ini_get('session.gc_maxlifetime');
if (array_key_exists('picture', $userdata) && !empty($user->picture)) {
$fs = get_file_storage();
$usercontext = get_context_instance(CONTEXT_USER, $user->id, MUST_EXIST);
if ($usericonfile = $fs->get_file($usercontext->id, 'user', 'icon', 0, '/', 'f1.png')) {
$userdata['_mnet_userpicture_timemodified'] = $usericonfile->get_timemodified();
$userdata['_mnet_userpicture_mimetype'] = $usericonfile->get_mimetype();
} else {
if ($usericonfile = $fs->get_file($usercontext->id, 'user', 'icon', 0, '/', 'f1.jpg')) {
$userdata['_mnet_userpicture_timemodified'] = $usericonfile->get_timemodified();
$userdata['_mnet_userpicture_mimetype'] = $usericonfile->get_mimetype();
}
}
}
$userdata['myhosts'] = array();
if ($courses = enrol_get_users_courses($user->id, false)) {
$userdata['myhosts'][] = array('name' => $SITE->shortname, 'url' => $CFG->wwwroot, 'count' => count($courses));
}
$sql = "SELECT h.name AS hostname, h.wwwroot, h.id AS hostid,\n COUNT(c.id) AS count\n FROM {mnetservice_enrol_courses} c\n JOIN {mnetservice_enrol_enrolments} e ON (e.hostid = c.hostid AND e.remotecourseid = c.remoteid)\n JOIN {mnet_host} h ON h.id = c.hostid\n WHERE e.userid = ? AND c.hostid = ?\n GROUP BY h.name, h.wwwroot, h.id";
if ($courses = $DB->get_records_sql($sql, array($user->id, $remoteclient->id))) {
foreach ($courses as $course) {
$userdata['myhosts'][] = array('name' => $course->hostname, 'url' => $CFG->wwwroot . '/auth/mnet/jump.php?hostid=' . $course->hostid, 'count' => $course->count);
}
}
return $userdata;
}
/**
* Send request to enrol our user to the remote course
*
* Updates our remote enrolments cache if the enrolment was successful.
*
* @uses mnet_xmlrpc_client Invokes XML-RPC request
* @param object $user our user
* @param object $remotecourse record from mnetservice_enrol_courses table
* @return true|string true if success, error message from the remote host otherwise
*/
public function req_enrol_user(stdclass $user, stdclass $remotecourse)
{
global $CFG, $DB;
require_once $CFG->dirroot . '/mnet/xmlrpc/client.php';
$peer = new mnet_peer();
$peer->set_id($remotecourse->hostid);
$request = new mnet_xmlrpc_client();
$request->set_method('enrol/mnet/enrol.php/enrol_user');
$request->add_param(mnet_strip_user((array) $user, mnet_fields_to_send($peer)));
$request->add_param($remotecourse->remoteid);
if ($request->send($peer) === true) {
if ($request->response === true) {
// cache the enrolment information in our table
$enrolment = new stdclass();
$enrolment->hostid = $peer->id;
$enrolment->userid = $user->id;
$enrolment->remotecourseid = $remotecourse->remoteid;
$enrolment->enroltype = 'mnet';
// $enrolment->rolename not known now, must be re-fetched
// $enrolment->enroltime not known now, must be re-fetched
$DB->insert_record('mnetservice_enrol_enrolments', $enrolment);
return true;
} else {
return serialize(array('invalid response: ' . print_r($request->response, true)));
}
} else {
return serialize($request->error);
}
}